boxelder bugs

Boxelder bugs do not nest indoors year-round. Rather, they make their homes in box elder, maple and ash trees during warmer seasons and migrate into buildings and homes to find shelter for the winter. They enter through small cracks and crevices within the building, and remain inside, hibernating, through fall and winter. They emerge when heat sources within the building are high and can be located in the warmest areas of a structure’s walls.